Safety and Efficacy Evaluation of Intracoronary Infusion of Allogeneic Human Cardiac Stem Cells in Patients With AMI (CAREMI)

November 13, 2017 updated by: Coretherapix

First-in-human, Double Blind, Randomized With Placebo, Open for the 6 First Patients (Dose Ranging) to Evaluate the Safety and Efficacy of Intracoronary Infusion of Allogeneic Human CSCs in Patients With AMI and Left Ventricular Dysfunction

Development of myocardial reparative therapy for the treatment of acute ischemic cardiac disease, based on the intracoronary administration of allogeneic Cardiac Stem Cells (CSCs) to ameliorate myocardial cell death and promote cardio-regeneration.

The study comprises two phases:

  1. Initial dose-escalation open-label safety phase comprising 6 patients. Escalation will start with the Maximum Recommended Safe Dose (MRSD) calculated from Non-Observed Adverse Events Level (NOAEL) and it is expected to finish with the target dose (TD). There will be no placebo group for this initial phase.
  2. Randomized double-blind placebo-controlled safety and efficacy phase in which the TD will be injected if the dose-escalation phase is completed successfully.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This is a "First in Patient" Clinical Trial to obtain safety and efficacy results about the intracoronary administration of a suspension of allogeneic cardiac stem cells (CSCs) for the treatment of ST elevation Myocardial Infarction (STEMI). This clinical trial will have a first dose-escalation phase in which the safety of 10, 20 and 35 million CSCs administration will be evaluated in 6 patients. A second double-blind randomized and placebo controlled phase will be initiated, if no major safety effects are observed during the first week after cell administration. The 35 million cells dose is the one expected to be used during the randomized phase.

Patients with EF<45% and with infarct sizes > 25% will be selected by magnetic resonance image (MRI). 49 patients will be included in the randomized phase with the aim of having 38 patients for efficacy analysis at the end of the follow up period (12 months). In this phase, patients will be randomly allocated for receiving CSCs or placebo in a 2:1 scheme. Three bioequivalent cellular batches obtained from different donors will be indistinctly used during the assay.

CSCs or placebo treatment will be infused into the coronary artery responsible for the ischemic event. Placebo will be a commercial preparation of human serum albumin 5% in saline solution that will also be used for cell product reconstitution.

After treatment, patients will be monitored overnight in a coronary care unit for any toxicity and discharged from hospital 24h after treatment if no adverse events are observed.

Subsequent safety follow-up will be done first at day 7 after treatment and then monthly or quarterly thereafter for 12 months. In addition, efficacy evaluations will be performed by MRI and clinical parameters at 1, 6 and 12 months after treatment.

Finally, cellular and humoral immunological response (screening for anti-HLA (Human Leukocyte Antigen) class I and class II antibodies, HLA typing, cross-matching between cells and treated patient and cytokine profiling in blood samples) will be analysed during the clinical trial.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
55

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Spain
    • Madrid
      • Tres Cantos, Madrid, Spain, 28760
        • Coretherapix (Tigenix Group)

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Adult patients ≥ 18 years of age and ≤ 80 years.
  • Patients presenting a ST-segment-elevation myocardial infarction (STEMI) according to the universally accepted definition found in the STEMI management guide of the European Society of Cardiology
  • Killip ≤ 2 on admission
  • Successful primary coronary revascularization by Percutaneous Coronary Intervention- PCI - (Thrombolysis In Myocardial Infarction [TIMI] = 3) within 12h after the onset of infarct symptoms
  • Bare-metal or drug-eluting stents (DES) of second generation (including new second generation stents, e.g. biolimus, novolimus and bioreabsorbable stents) at coronary revascularization by PCI
  • Ejection Fraction (EF) ≤45% by magnetic resonance imaging (MRI). This MRI will be done between day 3 and day 5 after infarction and will be used as inclusion MRI
  • Infarct size in left ventricle (LV) tested in the screening MRI ≥25% The presence of microvascular obstruction at inclusion MRI is permitted
  • The affected coronary artery is adequate for cells infusion at the administration time. The administration procedure is technically feasible on day 4-7 after coronary revascularization by PCI
  • The patient is stable and in adequate clinical condition to undergo the procedure.

Exclusion Criteria:

  • Participation in another clinical trial in the last 30 days
  • Previous allogeneic transplant (blood transfusions are allowed) or treated with cell or gene therapy
  • Previous Q-wave infarction
  • Significant valve disease, relapsing pericarditis, history of cardiac tamponade, cardiomyopathies
  • Severe stenotic lesions (>90%) in a coronary vessel with size >2.75 mm not treated by PCI at least 24 hours before the baseline MRI study
  • Previous EF≤45%, NYHA > 2 (New York Heart Association Functional Classification) or hospital admission for heart failure before STEMI
  • Sustained VT that does not revert with treatment or requires >6 hours to be controlled in the 48 hours prior to the product administration procedure
  • Complete atrioventricular blockade, or acute left bundle branch block in the 48 hours prior to the product administration procedure
  • History of cardioembolic disease
  • Platelets <100,000 and/or Hb<8.5g/dL
  • Acute or chronic renal failure with creatinine ≥2.5 mg/dl or creatinine clearance ≤30 mL/min
  • Infection with systemic involvement
  • Cancer disease, except that eradicated at least 5 years before inclusion, and without receiving radiotherapy on chest. It is permitted coetaneous non-melanoma neoplasms completely eliminated (at any time) and that do not require subsequent chemotherapy or radiotherapy on chest.
  • Child-Pugh's C stage chronic liver disease
  • Baseline respiratory failure requiring oxygen at home
  • Uncontrolled hypertension at screening despite treatment (systolic blood pressure [BP] ≥180 and/or diastolic BP ≥110)
  • Very poorly controlled diabetes (Hb1Ac ≥8.5 g/dL) or with serious target organ lesion (peripheral vascular disease requiring revascularization or non revascularize)
  • History of autoimmune disease
  • Primary or acquired immune deficiency or immunosuppressant treatment (including treatments with immunosuppressants in the previous three months, or foreseeable need for those treatments during the course of the study).
  • Women who are pregnant or breastfeeding or women of childbearing potential who do not agree to use contraceptives during the study period
  • Life expectancy of less than 2 years for any reason.
  • Allergy to aminoglycoside antibiotics or HSA hypersensitivity
  • Contraindications preventing the use of Magnetic Resonance Imaging: Pacemaker, Implantable cardioverter-defibrillator (ICD), known reaction to gadolinium, claustrophobia, cochlear implants

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Allogeneic human cardiac stem cells
After randomization, subjects will received a suspension of allogeneic human cardiac stem cells (35 millions of CSCs - cell medicine) infused into the coronary artery responsible for the ischemic event.
Biological: Allogeneic human cardiac stem cells (CSCs)
Allogeneic human CSCs is a new cell medicine based on cells isolated from human heart biological samples (right atrium appendage of donors) and expanded in vitro.
Other Names:
  • AlloCSC-01
Placebo Comparator: Placebo: Human Serum Albumin-HSA 5%
After randomization, subjects will received placebo (which is also the cell medicine diluent). The placebo consists of a final administered volume of human serum albumin 5% in saline solution equivalent to the reconstituted cell medicine (18 mL). The placebo to be used is a marketed product (HSA 5%).
Other: Human Serum Albumin-HSA 5%
Human Serum Albumin (HSA) is a well-known physiologic protein widely used in clinical practice and without known toxicity after parenteral administration.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Safety measured as the number of deaths and number of Major Adverse Cardiac Events (MACE)
Time Frame: 12 months
The primary objective is to demonstrate the safety of the intra-coronary infusion of allogeneic cardiac stem cells in patients with a 7 days evolution first myocardial infarction and left ventricle dysfunction. Safety will be assessed a) evaluating the number of deaths from any cause within 30 days after cell medicine administration; b) evaluating the number of Major Adverse Cardiac Events (MACE) during the first 30 days (composite endpoint), defined as death from any cause, new Acute Myocardial Infarction (AMI), hospitalization due to Heart Failure (HF), sustained Ventricular Tachycardia (VT), Ventricular Fibrillation (VF), and stroke within 12 months after cell medicine administration.
12 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Efficacy measured by MRI as the infarct size change
Time Frame: 6 and 12 months
Change of the Infarct Size as percentage (%) of LV mass analysed by MRI at 6 and 12 months after treatment administration versus screening MRI and 1 month MRI.
6 and 12 months
Efficacy measured by MRI as the evolution of biomechanical parameters
Time Frame: 6 and 12 months
Percentage of change of the End Systolic Volume (ESV) and End Diastolic Volume (EDV), of the Wall Motion score as segmental contraction score, of the Sphericity Index, of the Systolic thickening by segment and of the Absolute change of Ejection Fraction (EF) analysed by MRI at 6 and 12 months after treatment administration versus screening MRI and 1 month MRI.
6 and 12 months
Efficacy measured by MRI as the evolution of edema
Time Frame: 1 month
Percentage of change in the edema volume analysed by MRI at 1 month after treatment administration versus screening MRI.
1 month

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Coretherapix

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Hospital General Universitario Gregorio Marañon
Universitaire Ziekenhuizen KU Leuven
Saint-Louis Hospital, Paris, France
Hospital Donostia
Complejo Hospitalario de Navarra
European Commission
University of Salamanca
Hospital Universitario Virgen de la Victoria
Hospital Clínico Universitario de Valladolid
Hospital Clínico Universitario de Valencia

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Marie Paule Richard, MD, Coretherapix (Tigenix Group)

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 1, 2014

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 1, 2015

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
November 14, 2016

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 27, 2015

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 6, 2015

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
May 8, 2015

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 14, 2017

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 13, 2017

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
November 1, 2017

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • CTPX01

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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